EP1929700A1 - Procede d'envoi de messages depuis un premier reseau vers un second reseau - Google Patents
Procede d'envoi de messages depuis un premier reseau vers un second reseauInfo
- Publication number
- EP1929700A1 EP1929700A1 EP06808269A EP06808269A EP1929700A1 EP 1929700 A1 EP1929700 A1 EP 1929700A1 EP 06808269 A EP06808269 A EP 06808269A EP 06808269 A EP06808269 A EP 06808269A EP 1929700 A1 EP1929700 A1 EP 1929700A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- network
- message
- power supply
- infrastructure equipment
- user terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2869—Operational details of access network equipments
- H04L12/2898—Subscriber equipments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
- H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Definitions
- the invention relates to a method for sending messages from a first network to a second network managed by a network operator, said first network comprising at least one infrastructure equipment, at least one user terminal connected to said infrastructure equipment and an inverter connected to a power source, electrically assisting at least said infrastructure equipment.
- the invention lies in the field of telecommunications. It more precisely concerns the local networks and the power supply of the equipment of these networks.
- a domestic UPS is used to protect one or more electronic equipment against variations or interruptions in electrical power. This is a case placed in interface between the electrical network and the terminals to be protected. For reasons of cost and volume the inverters offer little autonomy and once they have taken over by electrically powering the terminals, they give the best time to correctly finish running applications. locally. It is known to transmit from the inverter to the terminal a signal which signifies to the terminal the close end of the power supply (http: //www.apcmedia.com/pdf_downloads/latpdfs/996-920.pdf). This signal passes through a specific interface that is a serial interface or "USB" (the English "Universal Serial Bus") terminal. Of course, the transmission of this signal is reserved for terminals that have an interface to receive it and software to process it, for example by terminating applications running cleanly.
- USB Universal Serial Bus
- the terminal It is common for the terminal to use a service offered by a remote service provider located in a network relying on a network operator for its own connection to said network.
- the network operator provides resources to the terminal, such as, for example, internet connectivity and bandwidth, so that the terminal can access to a service, such as the Internet, a voice over IP service, a video service.
- a service such as the Internet, a voice over IP service, a video service.
- the terminal On loss of power supply, the terminal is no longer powered by the power source but by the inverter that took over. The inverter reaching the end of its autonomy, the terminal is not notified, it suddenly loses connectivity.
- TCP transmission control protocol
- the object of the invention is to overcome the disadvantages presented above.
- the object is achieved with a method according to the invention as described in the introductory paragraph and characterized in that it comprises: a step of alerting said infrastructure equipment by said inverter on failure of the power supply source; ,
- a step of transmitting a message of imminent termination of power supply by said infrastructure equipment to said user terminal a step of sending a loss of connectivity message to the second network to the attention of the network operator.
- the method enables equipment of a first network that becomes aware of an impending power supply end and therefore a loss of connectivity, to communicate on a second network to which they are connected to access one or more services.
- one or more service providers useful network and service information for the network operator managing the second network, and for the service provider (s) providing the service or services to the first network equipment.
- the advantages of this method are considerable since the network operator, alerted by the user terminal or the infrastructure equipment of the first network of a loss of connectivity, can immediately and cleanly release network resources used by the user terminal. This avoids using, for this release of resources, network mechanisms based on expirations of delays that hinder good performance of the network.
- the method according to the invention applies to resources managed by the network operator or / and the service provider and is not limited to a release of resources used by an application that runs on a client or client. server.
- the message of imminent end of power supply is not transmitted to the user terminal directly by the inverter, but on the first network by the infrastructure equipment, no interface or hardware Specific requirements are not required on the user terminal to handle such a message.
- the imminent power supply end message is transmitted by diffusion on all the interfaces of the first network of said infrastructure equipment.
- the method according to the invention comprises a step of sending a service message to at least one service provider that provides at least one service auditing user terminal.
- This embodiment has an advantage. Indeed, the sending by the user terminal of a message to a service provider who provides a service to indicate an end of use of this service allows the service provider to properly manage the use of this service. For example, a context of use of the service is saved; it can be used to restore a service session when resuming internet connectivity.
- a context of use of the service is saved; it can be used to restore a service session when resuming internet connectivity.
- a video service for example a video stream transmitted to a digital decoder dedicated to television or "Set Top Box"
- the stream can be returned from the exact moment it was interrupted.
- the quality of the service perceived by the user is thus improved.
- the service provider can accurately count the usage of the service.
- the management of the service is improved.
- the method according to the invention comprises a step of sending a user message from said user terminal to a peer of the second network with which it communicates.
- This embodiment has the advantage of allowing peers and therefore users, in communication with the user terminal as part of a service, to be warned of the disconnection of the user terminal.
- the invention also relates to infrastructure equipment intended to be installed in a first network and electrically powered by an inverter connected to a power source.
- the infrastructure equipment is characterized in that it comprises:
- the infrastructure equipment is characterized in that it comprises an inverter function.
- Integrating the function of an inverter into a device is interesting in terms of size and connection, which makes sense in the case for example of a home network.
- the infrastructure equipment is characterized in that it comprises a module for sending a loss of connectivity message to a second network managed by a network operator.
- Sending a message of loss of connectivity to the second network is interesting in the case for example where the user equipment of the first network are not equipped to signal themselves their loss of connectivity to the second network.
- the invention also relates to a computer program, characterized in that it comprises instructions for receiving an alert signal emitted by an inverter following a failure of a power supply source and instructions for transmitting a message imminent termination of power supply on at least one interface of a first network.
- the invention also relates to a user terminal, characterized in that it comprises:
- the user terminal according to the invention comprises a module for sending a service message to at least one service provider that provides it with at least one service.
- the user terminal according to the invention is characterized in that it comprises a module for sending a user message to at least one peer of the second network with which it communicates.
- the invention also relates to a computer program, characterized in that it comprises instructions for receiving a message of impending end of power supply from an infrastructure equipment of a first network and instructions for sending a message of loss of connectivity to a second network managed by a network operator.
- the invention also relates to a system comprising a first network and a second network.
- the system is characterized in that it comprises:
- At least one infrastructure equipment that is electrically powered by an inverter and when it is alerted by said inverter of a failure of a power supply, transmits an imminent power supply end message to at least one terminal of the power supply unit.
- first network - said user terminal which, upon receipt of said imminent power supply end message sends a connectivity loss message to said second network.
- FIG. 1 shows the steps of the method according to the invention.
- FIG. 2 is a first example of a system that implements the method according to the invention.
- Figure 3 is a second example of a system that implements the method according to the invention.
- FIG. 4 is a third example of a system according to the invention.
- FIG. 5 is a functional representation of a modem according to the invention.
- FIG. 6 is a functional representation of a user terminal according to the invention.
- a network includes equipment of different types. Infrastructure equipment is equipment that ensures the operation of this network. Other equipment connected to the network such as IP telephones 1 of digital decoders dedicated to television (the term commonly used is the term "Set Top Box" or "STB"), or personal computers are qualified as user terminals .
- a first network communicates with a second network via an interface constituted by a modem for example.
- the second network is managed by a network operator.
- the first network is a home network and the second network is a wide area network.
- the modem makes it possible to transmit and receive mainly digital data between a terminal and a communication network.
- xDSL encompassing all the variants of the DSL technology ("Digital Subscriber Line"), such as the ADSL ("Asymmetric Digital Subscriber Line”), which allows transmission of data. broadband data over copper networks.
- XDSL modems serve as an internet gateway for user terminals as diverse as IP telephones, digital set-top boxes for television, computers or game consoles.
- modems are provided with a power grid plug and one or more network interfaces, typically multiple LAN interfaces (the commonly used term is "Locai Area Network” or LAN) and a WAN interface.
- the modem is an infrastructure equipment. Inside the first network a more or less complex architecture can be defined. Thus, routers can be used to define subnetworks and to route communications within the first network, network hubs (the English term “hub” is almost always used) that duplicate information they receive from one of their ports to all their other ports, or switches (the term commonly used is the term "switch") that send the information received on one of their ports to the port where found connected a terminal concerned by the information can be installed to connect multiple equipment of the first network. Routers, hubs, and switches are also infrastructure equipment. The choice of architecture and infrastructure equipment used in the first network depends on the needs of the first network.
- a modem can be configured as a bridge or a router. This is called a bridge modem or a modem-router. These different configurations give the network operator a different view of the first network. The difference between the two is related to the assignment of IP addresses.
- a bridge modem the network operator is responsible for the IP addressing of the equipment of the first network. The operator has visibility on all the first network since he sees all the equipment of this first network. This type of configuration tends to be more and more recommended since it offers advantages of configuration of the equipment of the first network by the network operator, maintenance facilities for the network operator who can update remotely software versions installed on the equipment of the first network.
- a modem-router offers the network operator only very limited visibility of the home LAN since only the modem-router has an IP address visible to the network operator. It is the modem-router that assigns and manages the IP addresses of the equipment of the first network.
- the modem router and the bridge modem are of course infrastructure equipment.
- FIG. 1 shows the steps of the method according to the invention.
- a first network 1 is connected to a second network 6, via a modem 5.
- the second network 6 is managed by a network operator 8,
- An inverter 4 electrically rescues the modem 5 which is the interface between the first network 1 and the second network 6.
- the first network is a home network and the second is an extended network managed by the network operator 8.
- the modem 5, configured as a bridge modem, is specific to the present invention. It comprises a module 105 for transmitting an imminent power supply message on the interfaces of the first network after being alerted to a failure of the power supply source by the inverter 4.
- the module 105 is constituted by a program stored in a modem memory 5.
- a user terminal 2 specific to the present invention is located in the first network 1.
- the terminal 2 can be a personal computer, a digital decoder dedicated to television or "Set Top Box ", an IP phone, a printer, or any other equipment equipped with a network jack and connected via this network socket to the first network 1.
- It comprises a module 102 for sending messages to the second network.
- the module 102 is constituted by a program stored in a memory of the user terminal 2.
- the second network 6 provides the first network 1 via the interface constituted by the modem 5 basic network services or more advanced services depending on whether the
- the network operator 8 supports the configuration of the first network, which is possible in the case of a modem 5 bridge modem configuration.
- a service provider 7 provides to the user terminal 2 one or more services to which subscribes a user of the terminal 2, not shown in the figure.
- a service offered by the service provider is, for example and non-exhaustively, an Internet access service, a messaging service, content hosting, a streaming video service, an IP telephony service.
- the service provider 7 is connected to the second network 6, the user terminal 2 accesses the services of the service provider 7 through the second network 6.
- the user terminal 2 communicates with a peer 9, representing a user of a terminal and the associated terminal as part of a service to which he has subscribed.
- An example of a service that makes several peers communicate is an IP telephony service.
- FIG. 1 only one type of equipment user terminal, and a single service provider are represented. The invention is of course not limited to a single user terminal and a single service provider in the first network 1.
- the power source being faulty, more precisely, the inverter 4 detecting a power loss for several consecutive seconds, the inverter 4 takes over. Arriving at the limit of the end of its autonomy and the main source of electric current still being faulty, the inverter 4 alerts the modem 5 by transmitting a signal if signaling an imminent loss of power to the modem 5.
- the modem 5 transmits a message s2 imminent end of power supply to the user terminal 2, the message s2 is transmitted at the Ethernet.
- ii is transmitted in accordance with 802.11 derived from I 1 IEEE (IEEE 802.11-1999, "Information technology - Telecommunications and Information Exchange entre Systems - Local and Metropolitan Area Network - Specifies Requirements - Part 11: Wireiess LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications ") in the case where the user terminal 2 is connected to the first network by a wireless connection.
- the signal s2 is broadcast on all the interfaces of the first network that it has, to all equipment connected to said first network 1.
- the message s2 is transmitted by the modem 5 to the user terminal 2 in a muiticast mode: the user terminal 2 receives the message s2 if it subscribes to the stream muiticast corresponding to the message s2.
- the user equipment 2 sends a message s3 announcement of loss of connectivity to fe second network 6 to the network operator 8, through the modem 5.
- the message s3 is sent by the modem 5.
- This embodiment can be used for example in the case where the user terminals are not equipped with the module 102 specific to the invention.
- This embodiment can also be used in the case of a configuration of the modem 5 modem-router.
- the user terminal 2 which is executing a service offered by the service provider 7 sends a service-specific service message s4 to the service provider 7 for him. report an end of use of this service.
- the message s4 is sent by the modem 5.
- This embodiment can be used for example in the case where the user terminals are not equipped with the module 102 specific to the invention.
- This embodiment can also be used in the case of a configuration of the modem 5 modem-router.
- the exchanged messages are not limited to these examples and depend on the protocols used to communicate with the operator network and the service provider.
- Another example of a message type addressed to the network operator is a PPP-compliant ("Point-to-Point Potocol") message defined by RFC 1665 to the IETF, used when attaching a user terminal to the network.
- the message s4 sent to the service provider depends on the service offered and the underlying protocol, examples of protocols being SNMP ("Simple Network Management Protocol"), H323 and SIP (“Session initiation Protocol").
- SNMP Simple Network Management Protocol
- H323 and SIP Session initiation Protocol
- the H323 and SIP protocols are used in IP telephony services.
- the user terminal 2 transmits a user s5 signal to other peers to signal their end of participation in the ongoing communication.
- a service is for example an IP telephony service during which several peers discuss in real time.
- the module 102 is impimacé in the terminal during a first installation and possibly updated during a maintenance manual operation on the user terminal 2.
- the function is reprogrammable or reconfigurabie remotely thanks for example to an OSGI interface ("Open Service Gateway Initiative", http://www.osgi.org) which allows the dynamic deployment of applications without interruption of the first network, for example without interruption of the modem 5 which plays the role gateway between two networks.
- OSGI interface Open Service Gateway Initiative
- the messages s3, s4 and s5 sent by the user terminal 2 following the receipt of a message s2 end imminent power supply can evolve depending on service evolution or new network constraints by integrating, for example new parameters.
- an event of turning off the user terminal 2 caused by action of the on / off switch places the user terminal 2 in the step 12 of the method provided that the event triggers the module. 102 prior to the electrical shutdown.
- the message s3 is sent to the network operator.
- Figure 2 shows a system that implements the method according to the invention.
- the modem 5 uses the protocol 802, 3af to electrically power the equipment of the first network 1.
- the inverter uses the protocol 802, 3af to electrically power the equipment of the first network 1.
- the signal if imminent loss of power supply according to Figure 2 is conveyed by a signaling channel which connects the inverter to the modem 5.
- This signaling channel is for example worn by the electrical link 14.
- the signaling channel is carried by a serial link between the inverter 4 and the modem 5. In this case, two physical links connect the inverter to the modem .
- the modem 5 integrates the inverter function, the modem 5 and the inverter 4 forming only one infrastructure equipment.
- FIG. 3 presents a system that implements the method of the invention according to a second embodiment.
- the user terminals 2 are electrically powered by the mains and the inverter 4 electrically supplies all the equipment of the first network 1, user terminals and infrastructure equipment, which is illustrated by electrical links 14 and 15. which connect the inverter 4, respectively to the modem 5 and to the user terminals 2.
- FIG. 4 illustrates a system that implements the method of the invention according to a third embodiment.
- the first network 1 comprises in addition to the first infrastructure equipment which is the modem 5, a second infrastructure equipment which is a switch 20.
- the switch 20 is electrically powered by the inverter 4 connected to it. .
- the switch 20 uses the 802.3af protocol to electrically power the equipment of the first network 1, whether the user terminals 2 or the modem 5.
- the signal if imminent loss of power supply according to Figure 2 is conveyed by a signaling channel which connects the inverter to the switch 20.
- This signaling channel is for example carried by an electrical link 16.
- the signaling channel is carried by a serial link between the inverter and the switch. In this case, two physical links connect the inverter to the switch.
- the switch 20 integrates the inverter function, the inverter 4 and the switch 20 forming only one infrastructure equipment.
- the module 105 can be installed on different infrastructure equipment of the first network capable of broadcasting on several interfaces of the first network a message of imminent loss of power supply.
- other infrastructure equipment may impticher the invention: hubs, routers installed in the first network.
- the equipment in question can integrate the inverter function or be connected to the inverter via an electrical or serial link.
- FIG. 5 is a schematic functional representation of a modem
- Modem 5 is configured as a bridge modem and includes the inverter function.
- the modem 5 comprises functional modules, it also includes external interfaces that allow it to communicate with equipment of the first network; they are LAN-type interfaces, and with the second network; they are WAN type interfaces. It also includes internal interfaces that allow modules to communicate.
- a module 21 modulation / demoduiation serves the main function of a modem. This module converts digital data into analog data. It is interface with the second network by a first external interface 22.
- An interface management module 23 is responsible for managing the external interfaces and transmitting messages that arrive on an external interface to another external interface. Second external interfaces 24 are interfaces with the first network. In the case of a modem configured as a modem-router, this module also provides a routing function.
- a module 27, specific to the invention, comprises functional sub-modules.
- a sub-module 27-1 performs the functions of inverter. It is intended to alert a submodule 27-2 on failure of the main power source.
- An electrical interface 28 allows it to be supplied with electric current.
- a sub-module 27-3 is provided for constructing and transmitting an imminent power supply termination message on the interfaces of the first network. For this it communicates with the interface management module 23 which transmits the message. Sub-modules 27-1, 27-2, 27-3 communicate via unrepresented internal interfaces.
- FIG. 6 is a functional representation of a user terminal 2 according to the invention.
- the user terminal 2 shown is a digital decoder dedicated to television or "Set Top Box” which includes several functional modules, it also includes a network interface 30 which allows it to communicate with the network and internal interfaces that allow modules of the user terminal 2 to communicate.
- a functional module 29 fulfills the main function of digital decoding.
- the video stream is received via the network interface 30.
- a functional module 31 "specific to the invention comprises functional submodules.
- a module 31-1 is provided to receive an imminent power supply termination message via the network interface 30. Upon receipt of this message, a sub-module 31-2 prepares and sends a connectivity loss message through the interface. network interface 30 to the second network, for the attention of the network operator.
- a sub-module 31-3 is provided for preparing and sending a service message to a service provider that provides a video service.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL06808269T PL1929700T3 (pl) | 2005-08-31 | 2006-08-31 | Sposób przesyłania komunikatów z pierwszej sieci do drugiej sieci |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0552647A FR2890273A1 (fr) | 2005-08-31 | 2005-08-31 | Procede d'envoi de messages depuis un premier reseau vers un second reseau |
| PCT/FR2006/050829 WO2007026105A1 (fr) | 2005-08-31 | 2006-08-31 | Procede d'envoi de messages depuis un premier reseau vers un second reseau |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1929700A1 true EP1929700A1 (fr) | 2008-06-11 |
| EP1929700B1 EP1929700B1 (fr) | 2012-07-18 |
Family
ID=36481308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06808269A Active EP1929700B1 (fr) | 2005-08-31 | 2006-08-31 | Procede d'envoi de messages depuis un premier reseau vers un second reseau |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1929700B1 (fr) |
| ES (1) | ES2390474T3 (fr) |
| FR (1) | FR2890273A1 (fr) |
| PL (1) | PL1929700T3 (fr) |
| WO (1) | WO2007026105A1 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004070393A (ja) * | 2002-08-01 | 2004-03-04 | Fuji Electric Holdings Co Ltd | リモートシャットダウン方法 |
| DE10250918A1 (de) * | 2002-10-31 | 2004-05-19 | Siemens Ag | Schaltungsanordnung und Verfahren zum Senden einer letzten Meldung (Dying-Gasp) in ein xDSL-Netz |
-
2005
- 2005-08-31 FR FR0552647A patent/FR2890273A1/fr active Pending
-
2006
- 2006-08-31 ES ES06808269T patent/ES2390474T3/es active Active
- 2006-08-31 EP EP06808269A patent/EP1929700B1/fr active Active
- 2006-08-31 PL PL06808269T patent/PL1929700T3/pl unknown
- 2006-08-31 WO PCT/FR2006/050829 patent/WO2007026105A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007026105A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2390474T3 (es) | 2012-11-13 |
| EP1929700B1 (fr) | 2012-07-18 |
| WO2007026105A1 (fr) | 2007-03-08 |
| PL1929700T3 (pl) | 2012-11-30 |
| FR2890273A1 (fr) | 2007-03-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20080327 |
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